Agricultural implement.



- P; BROMAN 65 J OPFIIBRMAN'N.

AGRIGULTUBAL IMPLEMENT. APP LIOATIO N FILED SEPT. 28 1.911.

Patented Apr. 8, 1913,

. Mantra-sum P.- BROMAN 8: J. OFFERMANN.

AGRICULTURAL IMPLEMENT.

APPLICATION FILED SEPT. 28, 1911.

Patented Apr. 8, 1913.

2 SHEETS-SHEET 2.

. State T TEQBe OFFICE pnrnn'pnoman am) JOSEPH OFFEBMANN, OF BEAVER DAM, WISCONSIN.

AGRICULTURAL IMPLEMENT;

Specification of Letters Patent.

. Patented Apr. 8,1913.

- Application filed September 28, 1911. Serial No. 651,764.

To. atZZ. ,ib7wm it may concern Be it no'wn that we, PETER BROMAN and Jtisnrri. FERMANN, citizens of'the United iding at Beaver Dam, in the v1? Dodge and State of Visconsin, I vented certain new and useful Improvements in Agricultural Implementsof which the following is a specification.

This invention relates to agricultural i'mplements and has. particular reference. to the construction and arrangement of scraper attachments for hma chii es.

thebdisk type of seeding The' fobjects' of the, invention aire'to prov de' improvements in theposition, adjustment and operation of ascraping-shoe and to facilitate'its'mounting and removal with-.

- out disturbingother parts of the seeding machine.

- In the drawin drill disk, together with the With these objects in view our invention consists in the novel construction, combination and arrangement of. parts hereinafter described in detail, illustrated in-the'accompanying drawing and particularly pointed out in the appended claims.

-Figure 1 is a side elevation of a grain parts immediately associated therewith, such as seed-chute or boot, the draft-bar on which the boot and :disk are mounted, and our improved shoe applied thereto. Fig.2 is substantiallya top plan view of the parts shown in Fig. 1. Fig. 3 is anend or' edge View of the disk, boot and shoe.

Fig. 4 is an enlarged section taken substantially on line'X-X of Fig. 1}. Fig. 5 is an enlarged section taken substantially on line Y-Y of Fig. 1. I i

In the several views 2 Referring, now, to the disk and scraperbearings on the arm or bracketfl vlth which the essential features of this lnvention are connected, 6 is a saucer-shaped bearingmember rigidly secured to the concave side represents one of the seed-furrow-forming dlsks of a grain of the usual form of disk 2 by means oi .rivets 7-. It therefore rotates with the disk.

The depression within the saucer-shaped member 6 is filled by a thick washer 8 which has a square hole therethrough that is engaged by'a similarly squared sleeve 9 provided with-a circular head 10. Between the washer 8 and the disk 2 is interposed a thin washer, or perforated disk, 11 made of hard is seated inan annular rabbet 12 formed in the flange of the saucer-shaped bearingmember 6, and said disk 11 is held firmly between said flange and thedisk 2, as/shown in F 1g. 4. Against the opposite, or convex, side of the disk 2, and around the sleeve-head 10,

metal to withstand wear against the washer '8. The outer edge of the disk or washer 11 is mounted a dust-ring 13. This ringis formed witha laterally projecting flange 14 which extends from said rings inner pe-. riphery and is adapted to bear against the circular head 10. This dust-ring is springpressed against the convex side of the disk 2 by means of a spring15 that is interposed between said dust-ring and a cap 16 which is the hub-attzichment or bearing-part of the scraper 30. 'This cap is a disk of metal 'formed out ofthe fixed end of the scraper,

which we term the shoe, and has a square bolt-hole formed therethrough in such a 'manner as :to provide inwardly projecting lugs 17. The latter are engaged with opposite sides of a recess in the end of the head 10,- as shown in Fig. 4.- As also shown in said figure the cap 16 is formed with an annular depression which contains and supports the spring 15. .This cap is clamped against the head 10 by the head of a bolt 18 formed" with a squared-portion 19 engaging ii-substantially square recess 20 formed be- 22 is an oil-chamber 23 provided with suitable oil-holes (not shown) that communicate with the parts to be oiled. The bearing-member22 is somewhat similar in form to the cap 16 in that it is provided with means for supporting.a pressure-ring and a spring to bear against the rotating membe: 6. The thick washer-,8 and the bearingm-ember 22 are clamped together between 4 the head .10 of the sleeve 9 and a nut 21 i a. bearing-member 22 is fixed onthe arm '4 and. said: bearing-member, washer 8 and sleeve 9 are clamped together, the only parts shown in Fig. 4 which rotate are the disk 2 and the washer 11, the cap 16 being held against rotation by the engagement of its lugs. l'Z 'With the parallelwalls of the recess 20 in the head 10"of the'sle'eve9. Thus the sleeve 9: is substantially a clamping-bolt holding the'disk-bearings together rigidly Withrelation tothe arm l; The connection between the bearing-member 22 and the thick washer 8 isvefiect'ed through the walls for the oil-space 23; 7 These walls are an in-,

wardly projecting hub 28 on the member 22 which bearsa'gainst the washer 8 on one side a while the head 10 of the sleeve bears against the opposite side of said washer, As shown in Fig. 4, the foilchamber 23 is ex'tended partly into the washer 8. This permits the thickness of thewa'sher 8 to*fill the'entire depth ofthe' saucer-shaped member 6 and provides a wide bearing-surface between the members 6 andi.8 regardless of the depth of a the oil-space 23,-orthe thickness of metal required between the hub 28 and the head 10. 'Against the bottom of the saucerao sha ed member 6 is. placed a dust-ring 25 which is held against the member 6 by a oiled spring 26.mounted in a trough-portion 27 of the member 22. The side of the dust-ringis, as shown, slightly concaved' to form an annular seat-recess for the spring, The saucer-shaped'memb'er 6 has an opening through its bottom through which the hub- 28 is extended to thewasher ,8, the recessin the latter for the hub beinglabeled 29,

Extending from the capflltidownw i' ly and rearwardly is a disk-cleaning orscrap- 'ing blade'30, which we term the shoe of our invention, and-same is-held free of l the boot'5 in the manner statediabove agalnst rotation relative totthe disk 2.' It will be noticed that the'bearingsfor the disk2 are held togetherand intact between the head 10 and? the nut 21 regardless ofthe shoe at ,tachment which is clamped between'the head 10 of-the sle'evef9 and the head of thebolt i 18, which is'labeled 18; Notwithstandingthis the shoe and disk-bearings are substan tially one, and any angular ii tiwaiiieiit of; the

"stud, a dust-ring bearing against said disk,

: a ipisaeav a disk bearingsswilltherefore\ be iooinmunion the threaded end of saidsleeve. As the I cated to the shoe; that is, the shoe will follow the lateral movements of the disk bearings and always be held in the same relative relation to the disk whether its bearings wabble or not. Where the-shoe-is attached vto some other stationary part it will not follow such movements of the disk and is apt to. be moved inoperatively far away from the disk at times while at other times it may scrape against the disk like a brake. By making the disk and shoe bearings substantially one in this manner the adjustment of the shoe relative to the side of the disk may be made more exact and no allowances need be made for variations between disk bear ings and the shoe bearings; a

Another important feature of the pres ent invention 1s the convenience with which the shoe may be removed or replaced with out disturbing or taking apart other" or-1 tions of the machine; In" the remove -Rot the shoe all thatis involved is the r'eriioval of the bolt 18. a

' HaVing thus described our invention, we

chim s new and desire'to secure by Letters 1. The combinationwith a draw-bar, of a bearing-bracket suspended from said draw-bar, a bearing-stud secured to said bracket, 'a'disk revolubly mounted on said a'spring pressing said dust-ring against saiddisk, and a combination spring-retainer and shoe secured to said stud. 3

22111 a" grain-drill, the combination with a draw-bar, of a bearing-arm 4, a sleeve,

disk-bearings mounted upon said sleeve, a I

disk revolubly mounted on said disk-bearings, means for seeuringsaid disk-bearings and sleeve together and thereby supporting said diskon its bearings, ashoe, and a clamping bolt'passing through said sleeve and shoe and'clamping same together.

In testimonywhereof we'have hereunto set our hands in the presence of twosub-' scribing witnesses.

' PETERBROMAN;

, I JOSEPH OFFERMANN.

Witnesses: v 1

JOHN C. HEALY,

JAMES T. VHEALY'. 

